panic reboot stuck in rtas_os_term

[Olaf Hering]

 On Sun, May 08, Olaf Hering wrote:

> 
> A panic does not trigger a reboot anymore on JS20, rtas_os_term() is stuck in
> RTAS. .config is the defconfig.
> The panic reboot works on a p630, but I miss the 'rebooting in 180 seconds' message.
> Any ideas how to fix that?
> 
> VFS: Cannot open root device "<NULL>" or unknown-block(8,2)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,2)
>  rtas [swapper]:   Entering rtas_call
> rtas [swapper]:         token    = 0x1a
> rtas [swapper]:         nargs    = 1
> rtas [swapper]:         nret     = 1
> rtas [swapper]:         &outputs = 0x0
> rtas [swapper]:         narg[0] = 0x72cfa8
> rtas [swapper]:         entering rtas with 0x72c728

This appears to be a firmware bug, fails now also with sles9 sp1 kernel.
ibm,os-term was appearently added with recent firmware updates.

http://linux.bkbits.net:8080/linux-2.5/gnupatch@41997abd4TXSpY49vjgObO6N2R2MxA